Saw-tool.



PATENTBD JUNE 18; 190v;

W. BRYSON.

SAW TOOL. APPLIOATION nun JAR-16, 190m WWW I i 131mm MENTOR WITNESS-6:

"' n ronusis WILLIAM BRYSON, OF FIFIELD, WISCONSIN.

SAW-TOOL.

. Specification of Letters Patent.

Patented June 18, 1907.

Application filed January 16,1905. Serial No. 241,263.

To aZZ whom it may concern:

Be it known that I, WILLIAM BRYSON, a citizen of the United States, anda resident of Fifield, in the county of Price'and State of Wisconsin,have invented a new and Improved Saw-Tool, of which the following is afull, clear, and exact description.

This invention relates to improvements in tools employed in filing,jointing, side filing and setting saw teeth, an object being to providea device for this purpose by the aid of which the several operations ona saw may be quickly performed.

I will describe a saw tool embodying my invention, and then point outthe novel features in the appended claim.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is an elevation of a saw tool embodying my invention andshowing the ar rangement of the device for jointing the cutting teeth ofa saw; Fig. 2 shows the device as arranged for filing the clearingteeth; I

Fig. 3 is a sectional view illustrating the tool as employed forjointingthe clearing teeth; Fig. 4 illustrates the manner of setting the cuttingteeth; Fig. 5 indicates the position of parts while filing the cuttingteeth; Fig. 6 shows the tool in connection with a circular saw forfiling; and Fig; 7 is a perspective view of one ofthe saw tooth gages.

The device comprises two blocks 1, 2 designed to engage on oppositesides of the saw, both blocks being employed together. The blocks haveparallel longitudinally disposed slots 3 through which fastening bolts 4are designed to pass, these bolts being headed at one end, said heads ontheir inner sides being beveled to engage against thecorresponding'bevel of the slot openings, and at the other end areclamping nuts 5. 'Of course, when the tool is in position on a saw, thebolts will pass between the teeth as clearly indicated in Fig. 2. Eachblock at its ends has upwardly extended projections 6, and theseprojections are spaced apart so that a file may pass between them andoperate transversely of the saw to joint the clearing teeth, asindicated in Fig. 3. The upward projection of one block, here-shown asthe lock 1, has at the inner side tongues 7, designed to engage in slots8, formed in the upward projections 6 of the other block, thus formingguides.

the jointing operation.

.against opposite sides of the saw Arranged in the block 1 are screws 10designed to clampthe tool against the saw blade. The other block hasprojections 11 for engaging against the opposite side of the saw blade,and this block 2 also has on its other side projections 12 for engagingagainst the saw blade when the said block is used in The upwardprojections 6 of the block 2 have at the upper end outwardly extendedflanges 13, below which are shoulders 14, and between these flanges andthe shoulders, a file at is designed to be placed flatwise for thepurpose of jointing the cutting teeth, and the file is held inconnection with the block by means of a clamping screw 15 engaging in atapped hole in one of the flanges 13. When the tool is employed forjointing the cutting teeth, the block 1 is omitted, and it is alsoomitted when filing the sides of the saw teeth. During this 0 erationthe upper edge of the file is engage with the flanges 13 and the'loweredge with. shoulders 16 formed below the shoulders 14.

The gages used while filing the saw teeth consist of strips of metal 17folded these gages are adjustably connected to links 18 secured betweenthe blocks 1 and 2 by means of bolts 19 which pass through the upwardprojections 6 and through said links. The members of the gagesare'longitudinally slotted, and through these slots and through thelinks, clamping bolts 20 are passed. By this arrangement the gages maybe adjusted as to angle and projection relatively to the links. Aftersetting the gages the tool is to be moved along the saw, while filingthe teeth and thus obviously, all of the teeth will be filed at the sameend. In filing-the teeth of a circular saw, only one gage will be set,as indicated in Fig. 6.

The tooth setting device consists of a tappet 21 mounted to slide in anopening in the block 1, and it is held yieldingly outward or movedoutward when relieved from pressure by means of a spring 22 whichengages against the inner end of said tappet, the said spring beingattached at its end to the inner side of the block 1. On the outer sideof the block 1 is a fulcrum loop 23 through which the downwardlyextended portion 24 of an actuating lever 25 is designed to pass toengage with the outwardly extended end of the tappet 21. When the blocksare in position on a saw, a downward pressure on the lever to engageblade and 25 will cause the tappet 21 to move inward J and bend or setthe tooth.

Having thus described my invention, I claim as new and desire to secureby Letters Patent,

A saw tool comprising blocks adapted to tween opposing projections ofthe blocks, a U- haped and slotted gage, and a bolt passing through theslots of the link and gage.

n testimony whereof I have signed my 15 name to this specification inthe presence of two subscribing witnesses.

en a e 0 osite sides of a saw, the blocks haiiiig lo ri gitudinal slotsand each provided BRYSON' at its ends with upwardly extending projec-Witnesses:

tions, clamping bolts passing through the ABE WiLEY,

slots of the blocks, a slotted link pivoted be- C. E. HALL.

